vector cardiogram

例句：

1. 1. The vectorcardiogram showed a significant increase in heartrate during the exercise session.
   向量心电图显示在运动期间心率显著增加。
2. 2. The physician useda vector cardiogram to diagnose the patient's condition.
   医生使用向量心电图来诊断病人的状况。
3. 3. During the test, the vectorcardiogram was recorded to monitor the patient's heart function.
   测试期间，向量心电图被记录下来以监测患者的心脏功能。